<template>
    <!-- 头部部分 -->
    <header class="header">
        <h1>todos</h1>
        <input @keydown.enter="hAdd" v-model.trim="taskname" class="new-todo" placeholder="请输入任务名称" autofocus />
    </header>
</template>

<script>
export default {
    data() {
        return {
            taskname: ''
        }
    },
    methods: {
        hAdd() {
            if (this.taskname === '') return alert('请输入任务名')
            this.$emit('addTask', this.taskname)
            this.taskname = ''
        }
    }
}
</script>

<style>

</style>